| Llantwit Major to River Ridge (Louisiana) | 4,498.14 mi (7,239.06 km) |
| Llantwit Major to Riverbank (California) | 5,215.38 mi (8,393.35 km) |
| Llantwit Major to Riverdale (Georgia) | 4,081.27 mi (6,568.16 km) |
| Llantwit Major to Riverdale (Illinois) | 3,832.86 mi (6,168.39 km) |
| Llantwit Major to Riverside (California) | 5,313.80 mi (8,551.73 km) |
| Llantwit Major to Riverside (Ohio) | 3,778.54 mi (6,080.98 km) |
| Llantwit Major to Riverton (Utah) | 4,771.53 mi (7,679.03 km) |
| Llantwit Major to Riverton (Wyoming) | 4,520.22 mi (7,274.60 km) |
| Llantwit Major to Riverview (Florida) | 4,273.81 mi (6,878.04 km) |
| Llantwit Major to Riverview (Michigan) | 3,635.01 mi (5,849.98 km) |
| Llantwit Major to Riviera Beach (Florida) | 4,230.84 mi (6,808.88 km) |
| Llantwit Major to Riviera Beach (Maryland) | 3,496.85 mi (5,627.63 km) |
| Llantwit Major to Roanoke (Virginia) | 3,723.06 mi (5,991.69 km) |
| Llantwit Major to Roanoke Rapids (North Carolina) | 3,665.22 mi (5,898.61 km) |
| Llantwit Major to Robbinsdale (Minnesota) | 3,893.93 mi (6,266.67 km) |
